Description Made of high class stainless steel, plastic material. A simple plunger driven ink container refills easily to use liquid ink neatly and conveniently with your fountain pen. Liquid ink is smooth flowing, leaves a solid, confident line, and adds to the sophisticated experience of fountain pen use. Features -Color: Red, Silver Black, Silver -Material: Stainless steel, plastic -Size: 12.00X0.70X0.70cm/4.72X0.28X0.28in -Note: Suitable for various kinds of 3.4 mm and 2.6 mm caliber ink pens with European standard. -Made of sturdy and durable materials, these ink absorbers can withstand continuous use. -They feature a simple design, but they are very practical to use and brings you a lot of convenience. -They are not easy to deform and break, convenient and durable for long time use. -The product design conforms to the ergonomic design and are easy to install and use. -Excellent workmanship and fine details ensure their popularity and durability. Packing List 9 x Pen Ink